hevc : update hls_decode_neighbour(cherry picked from commit...

hevc : update hls_decode_neighbour(cherry picked from commit 14341c6d9a6885657ba365807223e96a67d6c0ed)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/hevc.c

@@ -1794,23 +1794,23 @@ static void hls_decode_neighbour(HEVCContext *s, int x_ctb, int y_ctb,
 
     if (s->pps->tiles_enabled_flag) {
         tile_left_boundary = x_ctb > 0 &&
-                              s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - 1]];
+                             s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1]];
         slice_left_boundary = x_ctb > 0 &&
-                              s->tab_slice_address[ctb_addr_rs] == s->tab_slice_address[ctb_addr_rs - 1];
+                              s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - 1];
         tile_up_boundary  = y_ctb > 0 &&
-                            s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]];
+                            s->pps->tile_id[ctb_addr_ts] != s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs - s->sps->ctb_width]];
         slice_up_boundary = y_ctb > 0 &&
-                            s->tab_slice_address[ctb_addr_rs] == s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width];
+                            s->tab_slice_address[ctb_addr_rs] != s->tab_slice_address[ctb_addr_rs - s->sps->ctb_width];
     } else {
         tile_left_boundary =
-        tile_up_boundary    = 1;
-        slice_left_boundary = ctb_addr_in_slice > 0;
-        slice_up_boundary   = ctb_addr_in_slice >= s->sps->ctb_width;
-    }
-    lc->slice_or_tiles_left_boundary = (!slice_left_boundary) + (!tile_left_boundary << 1);
-    lc->slice_or_tiles_up_boundary   = (!slice_up_boundary + (!tile_up_boundary << 1));
-    lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0) && tile_left_boundary);
-    lc->ctb_up_flag   = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && tile_up_boundary);
+        tile_up_boundary   = 0;
+        slice_left_boundary = ctb_addr_in_slice <= 0;
+        slice_up_boundary   = ctb_addr_in_slice < s->sps->ctb_width;
+    }
+    lc->slice_or_tiles_left_boundary = slice_left_boundary + (tile_left_boundary << 1);
+    lc->slice_or_tiles_up_boundary   = slice_up_boundary   + (tile_up_boundary   << 1);
+    lc->ctb_left_flag = ((x_ctb > 0) && (ctb_addr_in_slice > 0)                  && !tile_left_boundary);
+    lc->ctb_up_flag   = ((y_ctb > 0) && (ctb_addr_in_slice >= s->sps->ctb_width) && !tile_up_boundary);
     lc->ctb_up_right_flag = ((y_ctb > 0)                 && (ctb_addr_in_slice+1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs+1 - s->sps->ctb_width]]));
     lc->ctb_up_left_flag  = ((x_ctb > 0) && (y_ctb > 0)  && (ctb_addr_in_slice-1 >= s->sps->ctb_width) && (s->pps->tile_id[ctb_addr_ts] == s->pps->tile_id[s->pps->ctb_addr_rs_to_ts[ctb_addr_rs-1 - s->sps->ctb_width]]));
 }